Deer Season Illinois 2025. Explore the seasons and lotteries calendar for hunting in illinois and plan your next adventure. It is slated to run from september 1 to january 31.

**no hunter, regardless of the quantity or type of permits in his/her possession, may harvest more than two antlered deer during a year, including the youth, archery, muzzleloader and firearm seasons. Illinois’ archery deer season is underway, and the department of natural resources is reminding hunters of key dates, regulations, and safety practices for the season.